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Polyclar

What it does :

Polyclar is used to reduce tannins and prevent chill haze in beer, while leaving proteins needed for head stability and mouthfeel.

What it is:

This is a brand name for an insoluble clarifier called Polyvinylpolypyrrolidone (PVPP), which consists of small, electro-statically charged plastic beads.

How it works:

Polyclar prevents chill haze by removing haze-causing polyphenols. It also removes harsh tasting phenols (tannins) and reduces off-flavors from oxidation.

Mechanism:

This material electrostatically attracts the undesired polyphenols and tannins, drawing them from suspension and settling them out of the beer for easier removal.

Dosage:

Add 0.5 to 2 teaspoons per 5 gallons. Add to the beer in the secondary fermenter.

Drawbacks:

Using excessive amounts of Polyclar can accelerate beer deterioration from over-aggressive removal of polyphenols and cause poor bottle carbonation excessive settling of suspended yeast cells. In addition, although this material is non-toxic, it is recommended that you rack beer off sediment before bottling or kegging.

Preparation:

Dissolve 0.5 to 2 teaspoons in 0.5 cups of clean, hot water for an hour, then cool before use.

Related Links

Water Treatment
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Polyclar